Plotly Example

Import the plotly and dplyr packages:

if(!require("plotly")){
    install.packages("plotly")
    library("plotly")
}
if(!require("dplyr")){
    install.packages("dplyr")
    library("dplyr")
}

I wrote a web scraper to gets the latitude, longitude, and enrollment of the top 200 universities and saves to a file named top_200_universities.csv.

Import the file:

universities <- read.csv("top_200_universities.csv")
universities <- universities %>% filter(!is.na(Latitude) & 
                              !is.na(Longitude) & 
                              !is.na(Enrollment))
names(universities)[1] = "Rank"

Plot a scatter plot using plotly comparing the enrollment

fig <- plot_ly(type = 'scatter', mode = 'markers')
fig <- fig %>%
    add_trace(x = universities$Enrollment,
              y = universities$Rank,
              text= universities$Name,
              hoverinfo = 'text',
              marker = list(color='blue'),
              showlegend = F)
fig <- fig %>% 
    layout(title = list(text = "Rank vs. Enrollment for Top 200 U.S. Universities"),
           xaxis = list(title = 'Enrollment'),
           yaxis = list(title = 'Rank'))
fig